And support for railway rails



(No Model.)

' J. GRIMME.

FASTENING AND SUPPORT FOR RAILWAY RAILS. No. 462,080. Patented Oct. 27,1891.

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UNITED STATES PATENT OFFICE.

JOHANNES GRIMME, OF BOCHUM, GERMANY, ASSIGNOR TO THE BOCHUMER VEltEINFUR BERGBAU UND GUSSSTAl'lL-FABRIKATION, OF SAME PLACE.

FASTENING AND SUPPORT FOR RAILWAY-RAILS.

SPECIFICATION forming part of Letters Patent No. 462,080, dated October2'7, 1891.

Application filed June 5, 1891. Serial No. 395,220. (No model.)

To all whom, it may concern:

Be it known that I, J OHANNES GRIMME, engineer, a subject of the King ofPrussia and German Emperor, residing at Bochum, in the Kingdom ofPrussia, German Empire, have invented certain new and usefulImprovements in Fastenings and Supports for Railway-Rails; and I dohereby declare the following to bea full, clear, and exact descriptionof the inven- [0 tion, such as will enable others skilledin the art towhich it appertains to make and use the same.

This invention relates to an improved construction of the chairs orsleepers and fishplatesofthepermanentwayof railways,whereby thefish-plates also constitute the support forthe rail, while atthe sametime they operate in conjunction with separate chairs, baseplates, orsleepers in such manner as to automatically apply an increased grip tothe rail when this is loaded, so that the fish-bolts are relieved ofstrain when the load is passing over the joint. The new arrangementisillustrated in the accompanying drawings, in which- Figure 1 shows thearrangement of the fast ening and of the support in avertical sectionafter the line y y in Fig. 3. Fig 2 is a vertical section after the line2 ,2 in Fig. Fig. 3 is a side View with a vertical section through 0 theline $113 of Fig. 1. Fig. 4 shows in a horizontal plan the newarrangement for the whole railway-track by using the new baseplates as achair extending over two crosssleepers, between which the joint of therails 5 is placed. Fig. 5 shows, also in a horizontal plan, the samearrangement by using the base-plate as a chair, sitting only on onecross-sleeper, over which the joint of the rail is placed. Fig. 6 showsthe same arrange- 0 ment in case the base-plate is used as alongitudinalsleeper.

For reaching the purpose aforesaid in all these cases the fish-plates LL are formed angular with Vertical portions which fit 5 against the websof the rails S S between the head and the base, and a horizontal portionterminating in an inclined end face, so that the inclined end faces ofthe two fishplates L L form together a wedge, which fits against thecorrespondingly inclined side faces 0 (Z of a trough-shaped base-plate,chair,

or sleeper B, shaped in the form a cf 0 9 cl h N), so that on exerting adownward pressure upon the horizontal limbs of the fish-plates L L bymeans of screw-bolts S 5*, screwing them to the bottom 9 of the base orsleeper,

a wedging action is produced, whereby their vertical limbs are pressedagainst the web of the rail independently of the pressure exerted by theordinary fish-bolts S S passing the fish-plates and rail. Furthermore,when the rail is loaded by a passing train the downward pressure exertedthereby still further increases such wedging action, and consequentlyalso the inward pressure or grip of the vertical limbs of thefish-plates, so that the fish-plates will then be relieved of straininstead of having increased strain put upon them, as in the case ofordinary fish-plates, where the load of a passing train causes the headof' the rail to exercise a downward wedging action on the fish-plates,tending to force these outward away from each other.

The force applied to the fish-plates forproducing the gripping action inthe above-described construction is not limited to the comparativelysmall surfaces represented by the heads and nuts of the fish-bolts, asin the case of ordinary fish-plates, but extends along the entiresurface of the inclined faces of the lishplates, so that the strain atany one point is considerably less than in the first-named case, andconsequently the wear and tear are also decreased. The trough of thebase-plate, chair, or sleeper B must of course be of such a depth thatthe base of the rail will always be out of contact with the bottom ofthe trough when loaded. The base-plate, chair, or sleeper B mayotherwise be constructed in various ways for the purposes of the inven-0 tion; but by preference the two sides of the trough are made of ahollow bridge form of sufficient strength to withstand the lateralwedging strain put upon them by the fishplates. 5

When used as a chair, as shown in Figs. at and 5, the base-plate can beeither made of such a length as to extend over two crosssleepers, towhich it is fixed by screw-bolts or spikes passing through lugs orflanges on the ICC chair, (see Fig. 4,) or it maybe only of such alength as to be, carried by a single crosssleeper. (See Fig. 5.) Whenused as a longitudinal sleeper, as it is shown in Fig. 6, it is made inconvenient lengths, bolted or otherwise secured together. In this caseintermediate pairs of the angular fish-plates may be provided forsupporting the rails between the joints, but Without fish-bolts passinga through them, the requisite grip being atforded by the fixing-boltspassing through the bottom of the trough.

It Will be seen that in the abovedescribed fastening the screw-boltssecuring the fishplates, respectively, to the rails and to the chair,base-plate, or sleeper need only be screwed up to such an extent as tohold the several parts together, the required grip being effectedentirely by the pressure of the passing train.

Having now particularly described and as certain ed the nature of mysaid invention and J OHANNES GRIMME.

\Vitnesses:

FRITZ BAARE, OSCAR PINAGEL.

